Breeding for cold tolerance in irrigated rice

Ciência Rural

Milach, Sandra Cristina Kothe¹  Cruz, Renata Pereira da² 

[1] Universidade Federal do Rio Grande do Sul;Universidade Federal do Rio Grande do Sul, Porto Alegre

关键词: Chilling temperature;    selection methodology;    developmental stages;    Oryza sativa;    chlorophyll fluorescence;    isozyme markers;   

DOI  :  10.1590/S0103-84782000000500031

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Genetic breeding for cold tolerance is presented as a strategy to confront the problem of chilling temperature in Rio Grande do Sul during irrigated rice crop season. The occurence of chilling temperatures in other countries is compared to the situation in Southern Brazil. Plant developmental stages most affected by low temperatures, selection strategies available in controlled conditions and difficulties found for breeding this trait are discussed. Finally, promising selection strategies based on Physiology and Biotechnology studies are presented.

【 授权许可】

CC BY-NC